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99264 SOLVING CORROSION PROBLEMS AT THE NEA BELLINGHAM MASSACHUSETTS CARBON DIOXIDE RECOVERY PLANT

Product Number: 51300-99264-SG
ISBN: 99264 1999 CP
Author: T. R. DeHart, Dr. DA. Hansen, C.L. Mariz, Dr. J. G. McCullough
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The Northeast Energy Associates (NEA) carbon dioxide recovery plant at Bellingham, MA utilizes a 30 wt. % monoethanol amine (MEA) solution with a proprietary additive to inhibit the corrosion of carbon steel. This plant was the first application of this technology to gas turbine flue gas, which has high concentrations of oxygen (typically 13 vol. %) and low concentrations of carbon dioxide (typically 3 vol. %). Prior to the operation of the Bellingham plant, the technology had been applied to boiler flue gas streams, which typically contain more than 8 vol. % carbon dioxide and 2-4 vol. % oxygen. In this first application of the technology to gas turbine flue gas, unexpected corrosion occurred in both the absorber and stripper towers. The causes of the corrosion and its successful elimination are the subject of this paper. Keywords: carbon dioxide, gas turbines, flue gas, monoethanol amine, corrosion, corrosion inhibitor, carbon dioxide absorption.
The Northeast Energy Associates (NEA) carbon dioxide recovery plant at Bellingham, MA utilizes a 30 wt. % monoethanol amine (MEA) solution with a proprietary additive to inhibit the corrosion of carbon steel. This plant was the first application of this technology to gas turbine flue gas, which has high concentrations of oxygen (typically 13 vol. %) and low concentrations of carbon dioxide (typically 3 vol. %). Prior to the operation of the Bellingham plant, the technology had been applied to boiler flue gas streams, which typically contain more than 8 vol. % carbon dioxide and 2-4 vol. % oxygen. In this first application of the technology to gas turbine flue gas, unexpected corrosion occurred in both the absorber and stripper towers. The causes of the corrosion and its successful elimination are the subject of this paper. Keywords: carbon dioxide, gas turbines, flue gas, monoethanol amine, corrosion, corrosion inhibitor, carbon dioxide absorption.
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